.page-register {
  background-color: #08160F; /* Nền tối theo tùy chỉnh */
  color: #F2FFF6; /* Chữ sáng theo tùy chỉnh */
  font-family: Arial, sans-serif;
  line-height: 1.6;
}

.page-register__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  box-sizing: border-box;
}

.page-register__hero-section {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 60px 20px;
  padding-top: 10px; /* body đã xử lý padding-top */
  text-align: center;
  background-color: #0A4B2C; /* Deep Green */
  overflow: hidden;
}

.page-register__hero-image-wrapper {
  width: 100%;
  max-width: 100%;
  overflow: hidden;
  box-sizing: border-box;
  margin-bottom: 20px;
}

.page-register__hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  border-radius: 12px;
}

.page-register__hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin-top: 20px;
}

.page-register__main-title {
  font-size: clamp(2em, 4vw, 3.2em); /* Sử dụng clamp để điều chỉnh kích thước */
  font-weight: bold;
  color: #F2FFF6;
  margin-bottom: 15px;
  line-height: 1.2;
}

.page-register__hero-description {
  font-size: 1.1em;
  color: #A7D9B8; /* Text Secondary */
  margin-bottom: 30px;
}

.page-register__btn-primary {
  display: inline-block;
  background: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
  color: #F2FFF6;
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  font-size: 1.1em;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: none;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.page-register__btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4), 0 0 15px #57E38D; /* Glow */
}

.page-register__section-title {
  font-size: clamp(1.8em, 3.5vw, 2.5em);
  font-weight: bold;
  color: #F2FFF6;
  text-align: center;
  margin-bottom: 30px;
  padding-top: 40px;
}

.page-register__section-description {
  font-size: 1.05em;
  color: #A7D9B8;
  text-align: center;
  max-width: 800px;
  margin: 0 auto 50px auto;
}

.page-register__benefits-section, 
.page-register__steps-section, 
.page-register__promotions-section, 
.page-register__security-section, 
.page-register__faq-section, 
.page-register__cta-section {
  padding: 60px 0;
  background-color: #08160F;
}

.page-register__benefits-grid, 
.page-register__steps-grid, 
.page-register__promo-grid, 
.page-register__security-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-bottom: 50px;
}

.page-register__benefit-card, 
.page-register__step-card, 
.page-register__promo-card, 
.page-register__feature-item {
  background-color: #11271B; /* Card BG */
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  border: 1px solid #2E7A4E; /* Border */
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-register__benefit-card:hover, 
.page-register__step-card:hover, 
.page-register__promo-card:hover, 
.page-register__feature-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3), 0 0 20px rgba(87, 227, 141, 0.5); /* Glow */
}

.page-register__card-title {
  font-size: 1.5em;
  color: #F2FFF6;
  margin-bottom: 15px;
  font-weight: bold;
}

.page-register__card-text {
  font-size: 1em;
  color: #A7D9B8;
}

.page-register__step-number {
  font-size: 2.5em;
  font-weight: bold;
  color: #F2C14E; /* Gold */
  margin-bottom: 15px;
  line-height: 1;
}

.page-register__content-image {
  width: 100%;
  height: auto;
  display: block;
  margin: 50px auto 0 auto;
  border-radius: 12px;
  max-width: 800px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.page-register__btn-secondary {
  display: inline-block;
  background-color: transparent;
  color: #2AD16F;
  padding: 12px 25px;
  border: 2px solid #2AD16F;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  font-size: 1em;
  transition: background-color 0.3s ease, color 0.3s ease, box-shadow 0.3s ease;
  margin-top: 30px;
}

.page-register__btn-secondary:hover {
  background-color: #2AD16F;
  color: #08160F;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-register__faq-list {
  margin-top: 40px;
}

.page-register__faq-item {
  background-color: #11271B; /* Card BG */
  border: 1px solid #2E7A4E; /* Border */
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
}

.page-register__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  font-size: 1.15em;
  font-weight: bold;
  color: #F2FFF6;
  cursor: pointer;
  background-color: #1E3A2A; /* Divider */
  transition: background-color 0.3s ease;
  list-style: none; /* For details/summary */
}

.page-register__faq-question::-webkit-details-marker {
  display: none;
}

.page-register__faq-question:hover {
  background-color: #0A4B2C; /* Deep Green */
}

.page-register__faq-qtext {
  flex-grow: 1;
}

.page-register__faq-toggle {
  font-size: 1.5em;
  line-height: 1;
  margin-left: 15px;
  color: #F2C14E; /* Gold */
}

.page-register__faq-item[open] .page-register__faq-toggle {
  content: '−';
}

.page-register__faq-answer {
  padding: 20px;
  font-size: 1em;
  color: #A7D9B8;
  background-color: #11271B;
}

.page-register__cta-section {
  text-align: center;
}

/* Responsive styles */
@media (max-width: 768px) {
  .page-register__container {
    padding-left: 15px;
    padding-right: 15px;
  }

  .page-register__hero-section {
    padding: 40px 15px;
    padding-top: 10px;
  }

  .page-register__hero-image-wrapper {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-register__hero-image {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }

  .page-register__main-title {
    font-size: 2em;
  }

  .page-register__hero-description {
    font-size: 1em;
  }

  .page-register__btn-primary {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    padding: 12px 20px;
    font-size: 1em;
  }

  .page-register__section-title {
    font-size: 1.8em;
    padding-top: 20px;
  }

  .page-register__section-description {
    font-size: 0.95em;
    margin-bottom: 30px;
  }

  .page-register__benefits-section, 
  .page-register__steps-section, 
  .page-register__promotions-section, 
  .page-register__security-section, 
  .page-register__faq-section, 
.page-register__cta-section {
    padding: 40px 0;
  }

  .page-register__benefits-grid, 
  .page-register__steps-grid, 
  .page-register__promo-grid, 
  .page-register__security-features {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-register__benefit-card, 
  .page-register__step-card, 
  .page-register__promo-card, 
  .page-register__feature-item {
    padding: 20px;
  }

  .page-register__card-title {
    font-size: 1.3em;
  }

  .page-register__card-text {
    font-size: 0.95em;
  }

  .page-register__step-number {
    font-size: 2em;
  }

  .page-register__content-image {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    margin-top: 30px;
  }

  .page-register__btn-secondary {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    padding: 10px 20px;
    font-size: 0.95em;
  }

  .page-register__faq-question {
    font-size: 1em;
    padding: 15px;
  }

  .page-register__faq-answer {
    padding: 15px;
  }

  .page-register__cta-section .page-register__btn-primary {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-register__cta-section .page-register__section-description {
    padding-left: 15px;
    padding-right: 15px;
  }
}

@media (max-width: 480px) {
  .page-register__main-title {
    font-size: 1.8em;
  }

  .page-register__section-title {
    font-size: 1.6em;
  }
}